Seiko Cal. 6391 - 210

The 6391-210 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6391 caliber with 21j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-b62e1790afe5]

Also known as: Goldfeather, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1968

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